Many agencies find themselves maintaining outdated signal-priority systems due to the expense involved with a full-system replacement. Upgrading from a legacy optical system to an advanced GNSS/RF system had previously meant replacing all vehicle and wayside equipment. This is no longer the case.
EMTRAC Dual-System Signal-Priority Detection
The EMTRAC system can detect optical signals from all major optical brands, as well as from the more-advanced EMTRAC GNSS/RF system. This capability enables cities to upgrade selected optical components while leaving other components in place until budgets allow for expanded upgrades.
EMTRAC Priority Detectors support up to 16 inputs, allowing for priority calls to be received for multiple phases from both optical and EMTRAC GNSS systems. Detectors plug into the same input files as optical phase selectors (or may be housed in shelf-mount enclosures in NEMA cabinets). Priority Detectors are capable of connecting to optical sensors while simultaneously connecting to omnidirectional antennas for the RF-based EMTRAC system.